Public Opinion

by Walter Lippmann

Yet curiously enough, though he knew that he needed help, he was slow to call in the social scientist. The chemist, the physicist, the geologist, had a much earlier and more friendly reception. Laboratories were set up for them, inducements offered, for there was quick appreciation of the victories over nature. But the scientist who has human nature as his problem is in a different case. There are many reasons for this: the chief one, that he has so few victories to exhibit. He has so few, because unless he deals with the historic past, he cannot prove his theories before offering them to the public. The physical scientist can make an hypothesis, test it, revise the hypothesis hundreds of times, and, if after all that, he is wrong, no one else has to pay the price. But the social scientist cannot begin to offer the assurance of a laboratory test, and if his advice is followed, and he is wrong, the consequences may be incalculable. He is in the nature of things far more responsible, and far less certain.